| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001RWCO |
| Model Year Start: 2021 | Model: RAV4 HV | Prod Date Range: [08/2020 - ] |
| Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for HV Model): SYSTEM DESCRIPTION; 2021 - 2024 MY RAV4 HV [08/2020 - ] | ||
SYSTEM DESCRIPTION
COMMUNICATION SYSTEM FUNCTION
(a) Air conditioning amplifier assembly transmits and receives the signals in each ECU via the CAN communication system and LIN communication system. Also, the air conditioning amplifier assembly transmits and receives the damper position, damper operation, sensor status, etc., signals to and from each actuator.
Air Conditioning Amplifier Assembly ←→ Airbag Sensor Assembly
|
Receiver |
Sender |
Signal |
Communication Line |
|---|---|---|---|
|
Air conditioning amplifier assembly |
Airbag sensor assembly |
Front passenger's seat occupant status |
CAN |
|
Front passenger's seat belt buckle switch status |
Air Conditioning Amplifier Assembly ←→ Main Body ECU (Multiplex Network Body ECU)
|
Receiver |
Sender |
Signal |
Communication Line |
|---|---|---|---|
|
Air conditioning amplifier assembly |
Main body ECU (multiplex network body ECU) |
Auto dimmer |
CAN |
|
Front passenger courtesy switch |
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|
Rear courtesy switch LH |
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|
Rear courtesy switch RH |
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|
Country code 1st, 2nd, 3rd |
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|
Steering wheel |
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|
Solar data (R) |
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|
Solar data (L) |
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|
Windshield temperature |
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|
Ambient temperature of humidity sensor |
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|
Main body ECU (multiplex network body ECU) |
Air conditioning amplifier assembly |
Ambient temperature display |
CAN |
Air Conditioning Amplifier Assembly ←→ Rack and Pinion Power Steering Gear Assembly (Power Steering ECU)
|
Receiver |
Sender |
Signal |
Communication Line |
|---|---|---|---|
|
Rack and pinion power steering gear assembly (power steering ECU) |
Air conditioning amplifier assembly |
Ambient temperature display |
CAN |
Air Conditioning Amplifier Assembly ←→ Combination Meter Assembly
|
Receiver |
Sender |
Signal |
Communication Line |
|---|---|---|---|
|
Air conditioning amplifier assembly |
Combination meter assembly |
Vehicle speed (meter to other) |
CAN |
|
Front passenger's seat occupant status |
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|
Combination meter assembly |
Air conditioning amplifier assembly |
Ambient temperature display |
CAN |
|
Switch signal of 0 or 0.5 below decimal point of ambient temperature display |
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|
A/C load limitation warning |
Air Conditioning Amplifier Assembly ←→ Hybrid Vehicle Control ECU Assembly
|
Receiver |
Sender |
Signal |
Communication Line |
|---|---|---|---|
|
Air conditioning amplifier assembly |
Hybrid vehicle control ECU assembly |
ECO mode indicator |
CAN |
|
Driver mode select |
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|
Battery maximum temperature |
|||
|
State of STB (Standby) |
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|
Compulsion recycle request |
|||
|
Communication A/C inverter and HV ECU |
|||
|
No electrical heater request |
|||
|
A/C permission electric power |
|||
|
Ready |
|||
|
A/C inverter main voltage |
|||
|
A/C inverter output |
|||
|
Motor over load information |
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|
Motor start information |
|||
|
A/C inverter internal power source malfunction |
|||
|
STB wire short |
|||
|
A/C inverter temperature information |
|||
|
Self check |
|||
|
Thermistor cold temperature malfunction |
|||
|
BTC down |
|||
|
A/C motor revolution |
|||
|
A/C input power |
|||
|
A/C inverter temperature |
|||
|
A/C-Inverter CPU error flag |
|||
|
A/C-Inverter CPU initialization flag |
|||
|
A/C inverter identification |
|||
|
Engine type information 1 - 4 |
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|
HV flag |
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|
ECO-run flag |
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|
Hybrid vehicle control ECU assembly |
Air conditioning amplifier assembly |
Refrigerant gas pressure sensor |
CAN |
|
In-vehicle temperature |
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|
Heating performance assistance request to transmission system |
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|
Heater idle up request |
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|
Front blower level indicator |
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|
ECO switch information |
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|
Engine on request |
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|
Charging control inhibit |
|||
|
Electro motion compressor target revolutions |
|||
|
Ambient temperature before correction |
|||
|
Ambient temperature display |
|||
|
Electro motion compressor start |
|||
|
Prior A/C control request |
|||
|
Standby for inverter request |
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|
Inlet state (for cooling battery) |
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|
A/C control state |
Air Conditioning Amplifier Assembly ←→ ECM
|
Receiver |
Sender |
Signal |
Communication Line |
|---|---|---|---|
|
Air conditioning amplifier assembly |
ECM |
Engine speed data |
CAN |
|
Voltage of accessory battery |
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|
Compulsory internal air circulation command signal at high water temperature |
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|
Water temperature |
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|
ECM |
Air conditioning amplifier assembly |
Heating performance assistance request to transmission system |
CAN |
|
Motor cooling fan drive request |
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|
Heater idle up request |
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|
Ambient temperature before correction |
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|
Ambient temperature display |
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|
Prior A/C control request |
Air Conditioning Amplifier Assembly ←→ Inverter with Converter Assembly
|
Receiver |
Sender |
Signal |
Communication Line |
|---|---|---|---|
|
Inverter with converter assembly |
Air conditioning amplifier assembly |
Ambient temperature before correction |
CAN |
|
Ambient temperature display |
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|
Prior A/C control request |
Air Conditioning Amplifier Assembly ←→ Air Conditioning Control Assembly
|
Receiver |
Sender |
Signal |
Communication Line |
|---|---|---|---|
|
Air conditioning amplifier assembly |
Air conditioning control assembly |
Independent control A/C information |
LIN |
|
AUTO switch operation |
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|
OFF switch operation |
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|
A/C switch operation |
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|
ECO switch operation |
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|
Blower switch operation |
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|
S-FLOW switch operation |
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|
Auto/manual identification information |
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|
Air outlet switch operation |
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|
DUAL switch operation |
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|
Driver side set temperature switch operation |
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|
Heater/cooler identification information |
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|
Front passenger side set temperature switch operation |
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|
Recirculation/fresh switch operation |
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|
S-FLOW select information |
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|
Blower customize select information |
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|
Air conditioning control assembly |
Air conditioning amplifier assembly |
S-FLOW display instruction |
LIN |
|
Blower customize display instruction |
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|
ECO display instruction |
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|
Entire front panel display instruction |
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|
AUTO display instruction |
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|
Blower level display instruction |
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|
Recirculation display instruction |
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|
Air outlet display instruction |
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|
DUAL display instruction |
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|
Driver side set temperature display instruction |
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|
Front passenger side set temperature display instruction |
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|
A/C display instruction |
Air Conditioning Amplifier Assembly ←→ Damper Servo
|
Receiver |
Sender |
Signal |
Communication Line |
|---|---|---|---|
|
Air conditioning amplifier assembly |
No. 1 air conditioning radiator damper servo sub-assembly |
Damper arm position |
LIN |
|
No. 2 air conditioning radiator damper servo sub-assembly |
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|
No. 3 air conditioning radiator damper servo sub-assembly (w/ Driver Seat Centralized Control) |
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|
No. 1 blower damper servo sub-assembly |
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|
No. 1 air conditioning radiator damper servo sub-assembly |
Air conditioning amplifier assembly |
Damper arm position |
LIN |
|
No. 2 air conditioning radiator damper servo sub-assembly |
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|
No. 3 air conditioning radiator damper servo sub-assembly (w/ Driver Seat Centralized Control) |
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|
No. 1 blower damper servo sub-assembly |
Air Conditioning Amplifier Assembly ←→ Blower Motor, Sensor, Switch etc.
|
Receiver |
Sender |
Signal |
Communication Line |
|---|---|---|---|
|
Air conditioning amplifier assembly |
Cooler thermistor (room temperature sensor) |
Sensor value |
Direct line |
|
Thermistor assembly |
|||
|
Air conditioner pressure sensor |
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|
No. 1 cooler thermistor |
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|
Integration control and panel assembly |
ECO switch |
||
|
Blower with fan motor sub-assembly |
Air conditioning amplifier assembly |
Drive |
Direct line |
|
|